Home / 1,229.10-1,841.85-497.40

Finding the Fourth Proportional to 1,229.10, 1,841.85 and 497.40

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Solution

The fourth proportional to 1,229.10, 1,841.85 and 497.40 is: 745.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229.10 : 1,841.85 = 497.40 : x
  2. Step 2: Convert to fraction form
    1,229.10/1,841.85 = 497.40/x
  3. Step 3: Cross multiply
    1,229.10x = 1,841.85 × 497.40
  4. Step 4: Simplify right side
    1,229.10x = 916,136.19
  5. Step 5: Solve for x
    x = 916,136.19/1,229.10
  6. Step 6: Final answer
    x = 745.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.